Noisy Sleeping: Grunting, Snoring, and Squeaking
The short answer
Newborns are notoriously noisy sleepers. Grunting, squeaking, snorting, cooing, and even brief pauses in breathing are all normal during newborn sleep. These sounds are caused by small nasal passages, immature breathing patterns, and active (REM) sleep. Most noisy sleeping resolves as baby grows.
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By Age
What to expect by age
Newborns are remarkably noisy sleepers, and this catches many new parents off guard. Common sounds include: grunting (especially common, sometimes called "grunting baby syndrome" where baby grunts while learning to coordinate breathing and bowel movements), squeaking and chirping, snorting and snuffling (tiny nasal passages clog easily with mucus), brief pauses in breathing lasting a few seconds followed by a deeper breath (periodic breathing, which is normal), and sighing. These sounds are most prominent during active (REM) sleep. Newborns spend about 50% of sleep in REM. Using a nasal aspirator and saline drops can help if congestion is contributing to noisy breathing.
Noisy sleeping continues but may gradually improve as nasal passages grow and breathing patterns mature. Some babies develop laryngomalacia (floppy tissue above the vocal cords), which causes a high-pitched squeaking sound (stridor) that is loudest during inhalation. Laryngomalacia is usually benign and resolves by 12-18 months.
Sleep sounds generally become quieter as baby grows. Snoring may persist if baby has nasal congestion or enlarged adenoids. If loud snoring is consistent, mention it to your pediatrician.
Most of the newborn noisy sleeping has resolved. Persistent snoring, gasping, or pauses in breathing should be evaluated as they may indicate obstructive sleep apnea.
What Should You Do?
When to take action
- Grunting, squeaking, snorting, and cooing during sleep
- Brief pauses in breathing (under 10 seconds) followed by a catch-up breath
- Sounds are loudest during active/light sleep
- Baby is gaining weight, feeding well, and breathing comfortably when awake
- Consistent loud snoring during every sleep
- High-pitched squeaking with every breath that worsens with feeding or crying (possible laryngomalacia)
- Noisy breathing accompanied by poor weight gain or difficult feeding
- Breathing pauses longer than 20 seconds
- Baby turns blue or pale during sleep
- Labored breathing with chest retractions (ribs showing), flaring nostrils, or belly breathing
- Baby gasps or chokes repeatedly during sleep
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
Worrying about your baby means you care. That is a good thing.
Related Medical Concerns
Baby's Eyes Rolling Back During Sleep
It is completely normal for babies' eyes to roll back, flutter, or appear to show the whites of their eyes as they fall asleep or during light sleep. This is a normal part of the transition between sleep stages and active (REM) sleep. It is not a sign of seizures when it occurs only during sleep transitions.
Irregular Newborn Sleep Patterns
Newborn sleep is naturally irregular and unpredictable. Babies are not born with a circadian rhythm and cannot distinguish day from night. Sleep gradually becomes more organized over the first 3-4 months. This is biologically normal and not something you are doing wrong.
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.
Adenoid Hypertrophy and Breathing
Adenoids are lymphoid tissue located behind the nose that help fight infection in young children. When adenoids become enlarged (adenoid hypertrophy), they can block the nasal airway, causing chronic mouth breathing, snoring, nasal speech, and sleep-disordered breathing. Enlarged adenoids are most common between ages 2-7 and are a leading cause of obstructive sleep apnea in young children. Treatment ranges from watchful waiting and nasal steroids to surgical removal (adenoidectomy) if breathing or sleep is significantly affected.
How to Advocate for Your Child's Needs
You know your child better than anyone, and your observations matter. If you feel something is not right with your child's development or health, you have every right to ask questions, request evaluations, and seek second opinions. Advocating for your child is not being difficult - it is being a good parent.